CVE-2018-15398: cisco adaptive_security_appliance_software Improper Access Control
Vulnerability summary
CVE-2018-15398 is a medium (CVSS 4.3) Improper Access Control vulnerability in cisco adaptive_security_appliance_software. EPSS estimates a 1.88% chance of exploitation in the next 30 days, higher than 79.1% of scored vulnerabilities.
Timeline
- 05-10-2018PublishedVulnerability first disclosed.
- 26-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the per-user-override feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass an access control list (ACL) that is configured for an interface of an affected device. The vulnerability is due to errors that could occur when the affected software constructs and applies per-user-override rules. An attacker could exploit this vulnerability by connecting to a network through an affected device that has a vulnerable configuration. A successful exploit could allow the attacker to access resources that are behind the affected device and would typically be protected by the interface ACL.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.88%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
0.00 pp
From 1.88% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco3 products
- adaptive_security_appliance_software9.6.4.3 | 9.4.2 | 9.4.4
- cisco adaptive security appliance (asa) softwaren/a
- secure_firewall_threat_defense6.2.0
1 vendor · 3 products
References
3 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-asa-acl-bypassVendor AdvisoryX Refsource CISCO